1 View all Hidalgo County, TX jobs in McAllen, TX - McAllen jobs. 2  Salary Search: Head Start salaries in McAllen, TX.  Related forums: Hidalgo County, TX - Mcallen, Texas.
Iron deficiency anemia  causing blue skin under the eyes. If there is a shortage of iron in the body, oxygen cannot be properly transported by the blood. Hemoglobin is the oxygen transporting component in the blood, moving oxygen from the lungs to the cells where it is released for normal cell metabolism.
Other causes are genetic or medically based, such as infection, head or facial trauma, or thin skin on the lower eyelids, which makes the underlying blue-colored veins more visible. Prominent skin darkening under the eyes can be a common normal feature in certain ethnic groups.